I've only been here for 15 days. I don't know if I call myself big, considering I only have 67 followers haha. The first thing I did was follow people that were interested in things I am. Then I commented and to this day comment on their posts that I like. I stay active on it. I also try to post once a day. For more advice, I made this post. Check it out and leave a comment there if you have more questions.
https://steemit.com/steemit/@primelink/my-thoughts-after-week-of-steem-advice-for-newcomers